Lab test

Washington & Oregon 22 Allergies Test Panel

The Regional Area 16 panel is a multi-allergen IgE blood test that screens for common environmental allergens associated with an inland northwestern region.

Typical price

From $399

Results

1-3 business days

Preparation

See preparation notes below

Sample

Blood draw or sample collection at a local center

The Regional Area 16 panel is a multi-allergen IgE blood test that screens for common environmental allergens associated with an inland northwestern region. It measures 22 allergen-specific IgE markers from a single blood sample, covering tree, grass, and weed pollens along with molds, dust mite, and animal dander. A healthcare provider may order it when allergy symptoms are seasonal or persistent and a broad regional profile is more useful than testing a single allergen. Results support further evaluation and discussion of possible triggers.

• Tree pollen-specific IgE Antibodies against tree pollens such as alder, birch, and cedar; assessed for seasonal symptoms.
• Grass pollen-specific IgE Antibodies against grass pollens such as timothy, ryegrass, and fescue; common in temperate climates.
• Weed pollen-specific IgE Antibodies against weed pollens such as ragweed, sagebrush, and plantain; linked to late-season symptoms.
• Mold spore-specific IgE Antibodies against mold spores such as Alternaria and Cladosporium; relevant in damp conditions.
• Indoor allergen-specific IgE Antibodies against dust mite, cat, dog, and cockroach allergens; assessed for year-round symptoms.

• People with seasonal or year-round nasal or eye allergy symptoms
• Individuals who suspect sensitivity to pollens, molds, or indoor allergens
• Those who want a broad regional allergy profile from one blood draw
• People whose individual allergen tests have been inconclusive
• Anyone whose provider recommends environmental allergy screening

• No fasting is required for most IgE allergy panels
• The sample can be collected at any time of day
• Tell the healthcare provider about all medications you take
• Staying well hydrated can make the blood draw easier

This panel returns a separate IgE value for every allergen tested, spanning seasonal pollens, mold spores, and year-round indoor allergens. Low or undetectable results indicate the immune system has not produced measurable antibodies, while elevated results show sensitization. Because sensitization does not always cause symptoms, the overall pattern matters more than any single marker. Clinicians use symptom timing and exposure to judge which results are relevant. Review the report with a healthcare provider before making lifestyle changes.

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